Sinjoe CNC spindle motor GDZ-80-1.5F with 1500w 5A.Max 24000 rpm air cooling CNC spindleis a good choice for repair or diy cnc spindle.1.5kw air cooled CNC spindle.
Air cooling way make your equipment with less heating cost and more convenient.1.5kw for mostly non-metallic materials carving is no problem.Can be used with 1.5kw inverter(HY or Sunfar) .

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Specifications:

Material:stainless steel jacket, high pressure cast aluminum, copper coil
Bearing Type: 2×7002C P4+1×7002C P4
Max Torque: 0.62Nm
Max speed: 24000 rev / min
Max Frequency: 400Hz
Rated Voltage: 220V
Radial Runout: 0.01mm (10 microns that is, less than one wire)
Axis degree: 0.025mm (2.5 microns)
Clamping diameter: ER11 collet, standard configuration 6mm
Nut Model: ER11-A-type
Collet Nut : 3.175mm,4mm,6mm
Speed mode: 0-24000 stepless speed control can be achieved through the inverter to adjust the output voltage and operating frequency,
Cooling mode: air cooling mode
Diameter: 80mm
Lubrication: high temperature grease 
Dimensions: 80mm * 188mm
Net Weight: 4.4Kg